diff --git a/eth/backend.go b/eth/backend.go
index 57924b9043..3363054aa8 100644
--- a/eth/backend.go
+++ b/eth/backend.go
@@ -194,7 +194,6 @@ func New(ctx *node.ServiceContext, config *Config) (*Ethereum, error) {
 		return nil, err
 	}
 
-	// todo(rjl493456442) wrap all setting into a single config struct
 	eth.miner = miner.New(eth, &config.Miner, chainConfig, eth.EventMux(), eth.engine, eth.isLocalBlock)
 	eth.miner.SetExtra(makeExtraData(config.Miner.ExtraData))